engineering mathematics MCQ #553

The general equation Ax² + Cy² + Dx + Ey + F = 0 represents a circle when:

engineering mathematics MCQ #553

  1. Question 1

    Q1. The general equation Ax² + Cy² + Dx + Ey + F = 0 represents a circle when:

    • A) A ≠ C
    • B) A = -C
    • C) A = C and B = 0
    • D) A = 0

    Answer: A = C and B = 0

    Explanation: A circle requires equal coefficients for x² and y², and no xy term to avoid rotation.